Wait a second... there sure is PH-UP[emoji651] and PH-DOWN[emoji652] In "PET STORES" Its very usual for aquariofilists to regulate ill tanks with such quick way. But ofc... you gotta keep in mind that the Ph itself is completely related and dependant to the environment in subject itself.
So rotening wood tends to acidify... decreasing ph
Some Minerals and rocks may be used to "alcalinize", increasing ph
And this will happen being in a earth mix, or aquarium (fish tank).
What sucks is to measure ph properly (measuring pens cost so much, and are so "fragile") and the cheap ph test may end up leading to excessive usage of the ph regulator which could result in a crazy war on dosing ph up and down. And trust me you just dont want to be dropping sick amounts of this crap in your solution.
In earth, I would use worms hummus...
I dont know hidro, but I could deal with aquapony, i guess.
The thing is that PH is the regulator to the root's ormosis.
PH is the key, In a fish tank for example, it is what dictates plants growth, bacterias.
Having a fish tank properly taken care of and in equilibrium sure is a hard task. And its pretty amazing if you stop to realize that you could totally feed a cannabis outta a pond... which is pretty organic.
We got a lot to study... sometimes i think: S#!t, I know nothing!
When in lust for info, I 'll use tapatalk to search several forums, Im always downloading stuff. From pdfs to all sort of e-books... I just hope I can ever contribute to this beautiful community with my logs.
And by the way i wrote tons but im no expert in any subjects here aborded. I only wish...
If anyone feel like improoving what I said, feel free to.